<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>消息通知</title>
</head>
<body>
  <button id="notifyBtn">通知消息</button>
</body>
<script>
  var notifyBtn = document.getElementById('notifyBtn');
  var option = {
      title:'小二,来订单了，出来接客了!',
      body:'有大官人刚翻了你的牌子',
  }
  notifyBtn.onclick = function(){
    new window.Notification(option.title,option)
  }
</script>
</html>